public class Leaf {
	int i;
	Leaf(int i) {
		this.i=i;
	}
	Leaf increament() {
		i++;
		return this;
	}
	void print() {
		System.out.println("i = "+i);
	}
	public static void main(String [] args) {
		Leaf leaf=new Leaf(100);
		leaf.increament().increament().print();
	}
}